<template>
  <div class="xtx-cart-page">
    <div class="container">
      <XtxBread>
        <XtxBreadItem to="/">首页</XtxBreadItem>
        <XtxBreadItem>购物车</XtxBreadItem>
      </XtxBread>
      <div class="cart">
        <table>
          <thead>
            <tr>
              <!-- <th width="120">
                <XtxCheckbox :modValue="isAllEffectSelected" @change="CheckEffectAll">全选</XtxCheckbox>
              </th> -->
               <th width="120">
                 <!-- v-model 进阶用法 配合vuex计算属性函数使用 -->
                <XtxCheckbox v-model="isAllEffectSelected" >全选</XtxCheckbox>
              </th>
              <th width="400">商品信息</th>
              <th width="220">单价</th>
              <th width="180">数量</th>
              <th width="180">小计</th>
              <th width="140">操作</th>
            </tr>
          </thead>
          <!-- 有效商品 -->
          <tbody>
            <!-- 购物车里面没有商品的时候显示的页面 -->
            <tr v-if="effectiveList.length === 0">
              <td colspan="6">
                <div class="cart-none" style="text-align: center">
                  <img src="~@/assets/images/none.png" alt="" />
                  <p>购物车内暂时没有商品</p>
                  <div class="btn" style="margin: 20px">
                    <XtxButton type="primary">继续逛逛</XtxButton>
                  </div>
                </div>
              </td>
            </tr>
            <tr v-for="i in effectiveList" :key="i.skuId">
              <td>
                <XtxCheckbox
                  @change="
                    $store.dispatch('cart/asyncInertSingle', {
                      skuId: i.skuId,
                      selected: i.selected,
                    })
                  "
                  v-model="i.selected"
                />
              </td>
              <td>
                <div class="goods">
                  <RouterLink to="/"
                    ><img :src="i.picture" alt=""
                  /></RouterLink>
                  <div>
                    <p class="name ellipsis">
                      {{ i.name }}
                    </p>
                    <p class="attr">{{ i.attrsText }}</p>
                  </div>
                </div>
              </td>
              <td class="tc">
                <p>&yen;{{ i.nowPrice }}</p>
                <p v-if="i.price - i.nowPrice > 0">
                  比加入时降价
                  <span class="red"
                    >&yen;{{ (i.price - i.nowPrice).toFixed(2) }}</span
                  >
                </p>
              </td>
              <td class="tc">
                <XtxNumbox
                  @change="
                    $store.dispatch('cart/asyncInertSingle', {
                      skuId: i.skuId,
                      count: i.count,
                    })
                  "
                  :isLabel="false"
                  :max="i.stock"
                  v-model="i.count"
                />
              </td>
              <td class="tc">
                <p class="f16 red">
                  &yen;{{ (i.nowPrice * i.count).toFixed(2) }}
                </p>
              </td>
              <td class="tc">
                <p><a href="javascript:;">移入收藏夹</a></p>
                <!-- 调用actions的函数进行删除功能实现 -->
                <p>
                  <a
                    class="green"
                    href="javascript:;"
                    @click="$store.dispatch('cart/asyncDeleteCart', i.skuId)"
                    >删除</a
                  >
                </p>
                <p><a href="javascript:;">找相似</a></p>
              </td>
            </tr>
          </tbody>
          <!-- 无效商品 -->
          <tbody>
            <tr>
              <td colspan="6"><h3 class="tit">失效商品</h3></td>
            </tr>
            <tr v-for="i in 3" :key="i">
              <td></td>
              <td>
                <div class="goods">
                  <RouterLink to="/"
                    ><img
                      src="https://yanxuan-itemnosdn.127.net/13ab302f8f2c954d873f03be36f8fb03.png"
                      alt=""
                  /></RouterLink>
                  <div>
                    <p class="name ellipsis">
                      和手足干裂说拜拜 ingrams手足皲裂修复霜
                    </p>
                    <p class="attr">颜色：粉色 尺寸：14cm 产地：中国</p>
                  </div>
                </div>
              </td>
              <td class="tc"><p>&yen;200.00</p></td>
              <td class="tc">1</td>
              <td class="tc"><p>&yen;200.00</p></td>
              <td class="tc">
                <p><a class="green" href="javascript:;">删除</a></p>
                <p><a href="javascript:;">找相似</a></p>
              </td>
            </tr>
          </tbody>
        </table>
      </div>
      <!-- 操作栏 -->
      <div class="action">
        <div class="batch"></div>
        <div class="total">
          <!-- 有效商品总数量 -->
          共 {{effectiveTotal}} 件有效商品，已选择 {{selectedAllCounts}} 件，商品合计：
          <span class="red">¥{{selectedAllPrice}}</span>
          <XtxButton type="primary" @click="goToSettlement">下单结算</XtxButton>
        </div>
      </div>
    </div>
  </div>
</template>
<script>
import { computed } from 'vue-demi'
import { useStore } from 'vuex'
import { message } from '@/components/Message'
import { useRouter } from 'vue-router'
export default {
  name: 'XtxCartPage',
  setup () {
    const store = useStore()
    const router = useRouter()
    // //console.log(store)
    // 通过 computed 获取到 VueX 的 getters 数据
    const effectiveList = computed(() => store.getters['cart/effectiveList'])
    // 选择的有效列表
    const selectedList = computed(() => store.getters['cart/selectedList'])
    // 选择的商品总数量
    const selectedAllCounts = computed(() => store.getters['cart/selectedAllCounts'])
    // 选择的有效商品的总价格
    const selectedAllPrice = computed(() => store.getters['cart/selectedAllPrice'])
    const effectiveTotal = computed(() => store.getters['cart/effectiveTotal'])
    const effectiveTotalPrice = computed(
      () => store.getters['cart/effectiveTotalPrice']
    )
    // 计算全选的配置 方案1
    // const isAllEffectSelected = computed(() => store.getters['cart/isAllEffectSelected'])
    // 方案 2
    const isAllEffectSelected = computed({
      get: () => store.getters['cart/isAllEffectSelected'],
      set: (val) => { store.dispatch('cart/asyncCheckEffectAll', val) }
    })
    // 点击全选按钮
    // const CheckEffectAll = (val) => {
    //   store.dispatch('cart/asyncCheckEffectAll', val)
    // }
    // 点击跳转下单结算页面
    const goToSettlement = () => {
      // console.log(store)
      // 在登录情况下再跳转
      if (!store.state.user.profile.token) {
        message({ text: '请先登录' })
        return false
      }
      // 有选择商品
      if (selectedAllCounts.value === 0) {
        message({ text: '请选择商品' })
        return false
      }
      // 都行了再进行跳转
      router.push('/settlement')
    }
    // return {
    //   effectiveList,
    //   effectiveTotal,
    //   effectiveTotalPrice,
    //   isAllEffectSelected,
    //   CheckEffectAll
    // }
    return {
      effectiveList,
      effectiveTotal,
      effectiveTotalPrice,
      isAllEffectSelected,
      selectedList,
      selectedAllCounts,
      selectedAllPrice,
      goToSettlement
    }
  }
}
</script>
<style scoped lang="less">
.tc {
  text-align: center;
  .xtx-numbox {
    margin: 0 auto;
    width: 120px;
  }
}
.red {
  color: @priceColor;
}
.green {
  color: @xtxColor;
}
.f16 {
  font-size: 16px;
}
.goods {
  display: flex;
  align-items: center;
  img {
    width: 100px;
    height: 100px;
  }
  > div {
    width: 280px;
    font-size: 16px;
    padding-left: 10px;
    .attr {
      font-size: 14px;
      color: #999;
    }
  }
}
.action {
  display: flex;
  background: #fff;
  margin-top: 20px;
  height: 80px;
  align-items: center;
  font-size: 16px;
  justify-content: space-between;
  padding: 0 30px;
  .xtx-checkbox {
    color: #999;
  }
  .batch {
    a {
      margin-left: 20px;
    }
  }
  .red {
    font-size: 18px;
    margin-right: 20px;
    font-weight: bold;
  }
}
.tit {
  color: #666;
  font-size: 16px;
  font-weight: normal;
  line-height: 50px;
}
.xtx-cart-page {
  .cart {
    background: #fff;
    color: #666;
    table {
      border-spacing: 0;
      border-collapse: collapse;
      line-height: 24px;
      th,
      td {
        padding: 10px;
        border-bottom: 1px solid #f5f5f5;
        &:first-child {
          text-align: left;
          padding-left: 30px;
          color: #999;
        }
      }
      th {
        font-size: 16px;
        font-weight: normal;
        line-height: 50px;
      }
    }
  }
}
</style>
